Personal Watercraft Stern Storage with Inclined Outer Wall

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Solution Overview

Problem

Conventional personal watercraft designs either lack accessible storage spaces for passengers while on the platform or position storage areas under the platform, making it difficult for passengers to access and retrieve items.

Innovation Solution

A personal watercraft design featuring a hull with a deck and a seat, where the platform is positioned at the stern with an outer wall inclined to create an accessible storage space between the outer and inner walls, allowing passengers to access storage from either the platform or seat, with a lid that opens and closes for easy access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the storage portion is disposed under the platform, then the storage space is protected from water, but the passenger cannot access the storage portion while remaining on the platform

Engineering Contradiction:

Improveaccessibility of storage portionVSAvoidprotection from water

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent transitions from a horizontal storage arrangement (under the platform) to a vertical arrangement (between the outer wall and inner wall). This dimensional change allows the storage portion to be positioned at a height accessible to passengers on the platform while maintaining water protection through the enclosed wall structure.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The storage portion is segmented into a specific spatial zone defined by the outer wall and inner wall, separated from both the platform area and the water environment. This segmentation creates a distinct accessible storage space that is neither fully integrated with the platform nor completely isolated beneath it.

Inventive Principle:

Principle #1Segmentation

2Volume of moving object

If the outer wall extends vertically, then the storage space is compact, but the passenger has difficulty accessing the storage space

Engineering Contradiction:

Improvecompactness of storage spaceVSAvoidaccessibility of storage space

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The storage portion is nested within the structure formed by the outer wall and inner wall, creating a compact yet accessible space. The inclined outer wall nests the storage volume efficiently within the overall vehicle structure while maintaining accessibility through strategically positioned openings.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If the lid is added to close the opening, then the storage space is protected, but the device complexity increases

Engineering Contradiction:

Improveprotection of storage spaceVSAvoidstructure with lid and hinge

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The lid serves multiple functions: it closes the opening to protect stored items from water and elements, provides a surface for passenger interaction, and integrates with the inclined outer wall structure. This multi-functionality justifies the added component while delivering comprehensive protection.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8555799B2Personal watercraft

Publication Date: 2013.10.15 YAMAHA MOTOR CO LTD

AI summary

A personal watercraft includes a hull, a deck disposed above the hull, and a seat supported on the deck. The deck includes a platform disposed at a stern of the personal watercraft, an outer wall disposed between the seat and the platform, and an inner wall disposed forward relative to the outer wall. The outer wall defines an opening accessible to an article storage space provided between the outer wall and the inner wall. The outer wall includes a lid arranged to open and close the opening.